21461906 is an even 8-digits composite number following 21461905
and preceding 21461907 . In scientific notation, it is written as 2.1461906 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 10109520 positive integers (up to 21461906) that are relatively prime to 21461906.
21461906 has 16 divisors, whose sum is 34076160
The reverse of 21461906 is 60916412
Previous prime number is 191
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million four hundred sixty-one thousand nine hundred six
Scientific notation
2.1461906 × 10^7
Engineering notation
2.1461906 × 10^6
Prime Factorization
2 × 19 × 191 × 2957
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21461906
Product of the distinct prime numbers
The prime factorization of 21461906 is 2 × 19 × 191 × 2957.
Since it has a total of 4 prime factors.
4 , 9 , 20 , 63 , 633 , 824 , 4035 , 1768 , 93882 , 18946 , 739007 , 2372 , 2286650 , 3895831 , 24185999 , 75181100 , 771291916 , 606477668 , 4663466958 , 9251235091
n×2
42923812
n×3
64385718
n×4
85847624
n×5
107309530
n÷2
10730953
n÷3
7153968.6666667
n÷3
5365476.5
n÷5
4292381.2
n2
460613409152836
n3
9.8856416895777E+21
n4
2.121647126914E+29
n5
4.5534591202998E+36
2 √n
4632.6996449155
3 √n
277.90056482122
4 √n
68.063937918074
5 √n
29.263997947909
1 , 2 , 19 , 38 , 191 , 382 , 2957 , 3629 , 5914 , 7258 , 56183 , 112366 , 564787 , 1129574 , 10730953 , 21461906
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21461905
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21461906 can be divided by 16 positive divisors.
The sum of these divisors (counting 21461906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001110111101110010010
3
Ternary
1111101101012102
4
Quaternary
1101313232102
5
Quinary
20443240111
6
Senary
2044000402
8
Octal
121675622
10
Decimal
21461906
12
Duodecimal
7230102
16
Hexadecimal
1477b92
20
Vigesimal
6e2ef6
36
Base36
cs042
md5
1c93f5b805a19ae890337fff7f0ca573
sha1
918362f4b33aaab3452a657cb3f4ddc04693daf4
sha256
819abe3f2b9e304b1af9a76f83b614d839fc6ed09d82bf5994b6b3395677200c
sha512
3427c09f67da51f9bafefdfde8e7e637b21115be1cb8ebb2ba1210bde68e5a12e35e2d72d33535cc0b676fb9eb284f8a9de06af35f633540c12426434ff74337
ripemd-160
6305a29cfea0ad99bdafe8aecba66f949f7cf8ce
Diameter
42923812
Circumference
134849132.44327
Area
1.4470597023395E+15
Volume
4.1408879077331E+22
Surface area
5.788238809358E+15
Circumference
134849132.44327
Perimeter
85847624
Area
460613409152836
Diagonal
30351718.539577
Surface area
2763680454917016
Volume
9.8856416895777E+21
Space diagonal
37173111.619267
Perimeter
64385718
Area
1.9945145682506E+14
Altitude
18586555.809634
Surface area
1.9945145682506E+14
Volume
1.1650340458468E+21
Height
10117239.513192